Authorities closed Highway 59 near Milton overnight Tuesday after a tanker truck filled with ethanol overturned Tuesday morning and sprung a leak.
The truck overturned at about 9:45 a.m. on a roundabout a mile east of Highway 26, with the ethanol starting to leak out of the tanker once it rolled onto its side.
Milton police and fire officials, along with the Department of Natural Resources, opted to let the entire tanker drain overnight as a safety precaution.
"You just don't want to create any kind of spark near it. It's a matter of risk versus reward and getting it prepared to upright it," said Milton Police Lt. John Conger.
The roundabout is part of new construction for 59 and isn't connected to another highway as of yet.
Conger said the DNR and fire department would assess whether the area was safe Wednesday morning before moving the tanker and re-opening the section of Highway 59.
"We don't know right now whether it will be safe to drive through there because of the spill and the fumes," he said.
There were an estimated 8,000 gallons of ethanol in the tanker, and it was leaking out at over 10 gallons a minute.